package com.sinata.appointment.util;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.concurrent.atomic.AtomicInteger;
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public final class OrderNoGenerator {
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private static final AtomicInteger SEQ = new AtomicInteger(0);
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private static final DateTimeFormatter FMT = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
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private OrderNoGenerator() {}
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public static String next() {
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return "ORD" + LocalDateTime.now().format(FMT) + String.format("%04d", SEQ.incrementAndGet() % 10000);
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}
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}
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